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Asynchronous polling------has no eligible methods for handling MessagesPage Title Module

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I had read the Reference about async-polling and async-gateway. I think async-polling is a good method. I want to do something with a third system .It's slow and Connection limit.But github hasn't example about async-polling. Reference is too sample.

Polling is always asynchronous from the perspective of the message sender since messages are polled from the QueueChannel by a different thread (poller thread) In your configuration you also adding task executor so the poller can use its thread poll. What you have configured is perfectly valid. Any messages that comes to 'publishChannel' will be polled by this poller. I guess I am missing the question